Psycho** I don't know if this was the first, but this must have been one of the earliest movies on multiple personality disorder. Since then, Hollywood has taken this concept and beaten it to death. Though some scenes show the usual brilliance of Hitchcock, the movie as a whole is not gripping throughout. Somewhere along the line, I lost interest in the movie. I'll repeat my usual (yawn yawn) comment on his movies - excellent use of sound.
